Generate array sequence (ES6)

sequence.js

[...Array(N).keys()] // will generate array sequence with N length

// example
[...Array(5).keys()] // [0,1,2,3,4]

// Don't hesitate to use map if you need array started from some specific index
[...Array(5).keys()].map(i => i+1) // [1,2,3,4,5]

// Also You can create some fancy util function
const getSequnce = (n, offset=0) => {
  return [...Array(n).keys()].map(i => i + offset)
}

getSequnce(5)   // [0, 1, 2, 3, 4]
getSequnce(5,1) // [1, 2, 3, 4, 5]
getSequnce(5,6) // [6, 7, 8, 9, 10]